High-Performance Space-Constrained Branch-Office Switching with Enterprise-Grade Features
Product Overview
The Cisco® Catalyst® 4928 10 Gigabit Ethernet Switch (4928-10GE) is a wire-speed, Layer 2 to 4, 1-rack-unit (1RU)
switch designed for space-constrained LAN distribution and core applications. Based on the proven Cisco Catalyst
4500 Series hardware and software architecture, this switch offers exceptional performance, bandwidth, and
reliability for medium-density, multilayer aggregation of high-performance LAN access switches. High performance
and scalability of intelligent network services are made possible with dedicated specialized resources known as
ternary content addressable memory (TCAM). Ample TCAM resources (64,000 entries) enable high feature capacity,
providing wire-speed routing and switching performance with concurrent provisioning of services such as quality of
service (QoS) and security, helping ensure scalability for today’s network requirements with ample room for future
growth.
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The Cisco Catalyst 4928 10 Gigabit Ethernet Switch offers 28 wire-speed 1000BASE-X Small Form-Factor pluggable
(SFP) ports and 2 wire-speed 10 Gigabit Ethernet (X2 optics) ports. Exceptional reliability and serviceability are
delivered with optional internal AC or DC 1 + 1 hot-swappable power supplies and a hot-swappable fan tray with
redundant fans (Figure 1).
Figure 1. Cisco Catalyst 4928 10 Gigabit Ethernet Switch with Hot-Swappable Fan Tray and Power Supplies
Applications
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch offers flexible and highly available aggregation solutions for
nonstop unified network services. Enterprise-grade features such as dynamic routing, dual hot-swappable power
supplies, and redundant field-replaceable fans enhance switch availability.
The switch is well-suited for space- and power-constrained deployments because of its compact 1RU form factor,
economical power needs, and efficient cooling. Ideally suited to support secure converged applications such as
Cisco TelePresence and Cisco Unified Communications, the switch delivers high-performance intelligent switching
with its robust feature set.
The 28-port downlink density is ideally suited for branch-office locations where a collapsed distribution core is the
most common network architecture (Figure 2). The downlink ports provide both an aggregation point for all access
switches and connectivity and policy services for traffic flows. The uplink ports connect the LAN to the external
networks, including remote data centers and branch offices. The SFP downlink ports are compatible with many
different optics types, allowing network architects to mix and match to meet specific network requirements.
Key Features and Benefits
Wire-Speed Performance in All Directions
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch delivers wire-speed throughput with low latency for dataintensive applications using a 96-Gbps switching fabric with a forwarding rate of 72 million packets per second
(mpps) in hardware for Layer 2 to 4 traffic. High-performance switching is maintained regardless of the number of
route entries or Layer 3 and 4 services enabled. Hardware-based Cisco Express Forwarding routing architecture
enables increased scalability and performance. X2 10 Gigabit Ethernet optics provide 20 Gigabit Ethernet wirespeed uplinks for maximum traffic throughput.
Power-Supply Redundancy for Nonstop Operations
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch provides reliability for critical applications with 1 + 1 redundant,
hot-swappable internal AC or DC power supplies. The 1 + 1 power supply design provides A-to-B failover when
power supplies are connected to different circuits. You can mix AC and DC power supplies in the same unit for
maximum deployment flexibility. The switch also has a hot-swappable fan tray with four redundant fans for additional
serviceability and availability.
Comprehensive Management
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch includes a single, dedicated 10/100 console port and a single,
dedicated 10/100 management port for offline disaster recovery and remote out-of-band management. Remote inband management is available with the Simple Network Management Protocol (SNMP), Telnet Client, Bootstrap
Protocol (BOOTP), and Trivial File Transfer Protocol (TFTP).
The management port has two operating modes designed to increase operational efficiency and availability. When
the system is in Remote Monitoring (RMON) mode, the management port operates in a disaster-recovery mode. In
this state the operator can reload new Cisco IOS® Software images from a TFTP server. During normal system
operation the management port operates as a standard out-of-band management port. Network administrators can
use standard command-line interface (CLI) commands to monitor and configure the switch without interrupting the
data flow.
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch delivers a comprehensive set of management tools to provide
the visibility and control required for LAN switching. With CiscoWorks solutions and embedded CiscoWorks
CiscoView, you can configure the switch to manage devices, VLANs, traffic, and policies. These web-based
management tools offer numerous services, including software deployment and quick isolation of error conditions.
Feature Availability
Table 1 lists software configuration options, Table 2 compares models for fiber aggregation, and Table 3 lists the
features and benefits of the Cisco Catalyst 4929 10 Gigabit Ethernet Switch.
Table 1. Software Configuration Options for the Cisco Catalyst 4928 10 Gigabit Ethernet Switch
Software ImageDescription
IP Base ImageStandard Layer 3 image, including Routing Information Protocol Version 1 (RIPv1), RIPv2, static routes, and Enhanced IGRP
Enterprise Services
Image
(EIGRP) stub
Enhanced Layer 3 image, including Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System (IS-IS),
EIGRP, Border Gateway Protocol (BGP), and all IP Base image features
Table 2. Cisco Catalyst 4900 Series Switch Model Comparison for Fiber Aggregation
Feature and DescriptionCisco Catalyst 4928 10 Gigabit Ethernet
Switch Capacity96 Gbps320 Gbps
Throughput71 mpps250 mpps for IPv4
IPv6 SupportIn softwareIn hardware
Height1RU2RU
Modular Half-Card Slots02
Maximum Number of 10 Gigabit Ethernet
Ports
Maximum Number of Gigabit Ethernet
(Fiber) Ports
Uplink Optics Type4 SFP
Multilayer switchingIP Base and Enterprise Service optionsIP Base and Enterprise Service options
Shared Buffer16 MB16 MB
CPU666 MHz1.3 GHz
Synchronous Dynamic RAM (SDRAM)256 MB512 MB
Active VLANs2,0484,096
Multicast Entries28,000 (Layer 3)
Per-VLAN Spanning Tree (PVST) and VLAN
IDs
Spanning Tree Protocol1000010000
Switched Virtual Interfaces (SVIs)2,0004,000
Security and QoS Hardware Entries32,000128,000
MAC Addresses55,00055,000
Switched Port Analyzer (SPAN)2 ingress and 4 egress8 ingress and 8 egress
USB PortNoYes
Compact Flash Memory SupportNoYes
Table 4. X2 Optics Support of Cisco Catalyst 4928 10 Gigabit Ethernet Switch
TypeMaximum Distance over Specified Medium
Long reach (LR)10 km on sigle-mode fiber (SMF) (G.652)
CX4Up to 15m on IBX4 cable
LX4300m on multimode fiber (MMF)
Short reach (SR)26 to 300m on MMF (depends on MMF type)
Extended reach (ER)40 km on SMF
Long reach LRM220m on MMF
Power Supply
The Cisco Catalyst 4928 10 Gigabit Ethernet Switch offers a choice of 300-watt (W) AC or DC power supplies. The
switch can operate with one power supply present. When two power supplies are installed, the switch shares the
power load between the two supplies. Table 5 lists the specifications of the power supplies.
Table 5. AC and DC Power Supply Specifications
Specification300 WAC300 WDC
Input Current4A at 100V or 2A at 240V 8A at -40 to -72 VDC
Output Current 8A at –40 to –60 VDC8A at -40 to -72 VDC
Output Current25A at 12 VDC25A at 12 VDC
Weight2.0 kg2.0 kg
Heat Dissipation1023 BTU/hr1023 BTU/hr
Advanced Security ● TACACS+ and RADIUS, which enable centralized control of the switch and restrict unauthorized users from altering the
●
Hardware-based multicast management
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Hardware-based access control lists (ACLs), router ACLs (RACLs), and VLAN ACLs (VACLs)
●
Comprehensive management
●
Manageable through Cisco Network Assistant
●
Single console port and single IP address to manage all system features
●
Software configuration management, including local and remote storage
●
Manageable through CiscoWorks Windows network-management software on a per-port and per-switch basis, providing a
common management interface for Cisco routers, switches, and hubs
●
SNMPv1, v2, and v3 instrumentation, delivering comprehensive in-band management
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CLI-based management console to provide detailed out-of-band management
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RMON software agent to support four RMON groups (history, statistics, alarms, and events) for enhanced traffic
management, monitoring, and analysis
●
Support for all nine RMON groups through the use of a Cisco SwitchProbe analyzer (SPAN) port, which permits traffic
monitoring of a single port, a group of ports, or the entire switch from a single network analyzer or RMON probe
●
Analysis support, including ingress port, egress port, and VLAN SPAN
SR-3580 Network Equipment Building Standards (NEBS) level 3 (GR-63-CORE, issue 3, and GR-1089-CORE,
issue 4)
●
Telecommunications Carrier Group (TCG) Checklist
●
ATT TP76200 level 3 and TCG Checklist
●
ETS 300 019-1-1, Class 1.2 Storage
●
ETS 300 019-1-2, Class 2.3 Transportation
●
ETS 300 019-1-3, Class 3.2 Stationary Use
Data Sheet
Cisco IOS Software Packaging for the Cisco Catalyst 4928 10 Gigabit Ethernet Switch
Cisco provides a Cisco IOS Software package for the Cisco Catalyst 4928 10 Gigabit Ethernet Switch, creating a
foundation for features and functions and offering consistency across all Cisco Catalyst switches. The Cisco IOS
Software release is designated Release 12.2SG:
●
The IP Base image does not support the following routing-related features: BGP, EIGRP, OSPF, and VRFlite).
●
The IP Base image supports EIGRP stub, RIPv1 and v2, and Static Routes for Layer 3 routing on all Cisco
Catalyst 4900 Series Switches.
●
The Enterprise Services image supports all Cisco Catalyst 4900 Series software features based on Cisco IOS
Software, including enhanced routing.
Table 1 earlier in this document provides a more detailed description of the feature differences between the IP Base
and Enterprise Services images.
Ordering Information
To place an order, visit the
Table 8. Ordering Information
Product Name Part Number
Cisco Catalyst 4928 10 Gigabit Ethernet SwitchWS-C4928-10GE
Cisco Catalyst 4900 series 300W AC power supplyPWR-C49-300AC(=)
Cisco Catalyst 4900 series 300W AC power supply, redundantPWR-C49-300AC/2
Cisco Catalyst 4900 series 300W DC power supplyPWR-C49-300DC(=)
Cisco Catalyst 4900 series 300W DC power supply, redundantPWR-C49-300DC/2
Accessories
Spare rack mount and cable guideC4948-ACC-KIT=
C4900 front and rear-mount bracketsC4948-BKT-KIT=
AS-3112 to IEC-C15 8ft AusCAB-AS3112-C15-AU
BS-1363 to IEC-C15 8ft UKCAB-BS1363-C15-UK
BS 546 to IEC-C15 6ft South Africa, IndiaCAB-BS546-C15-SA
C13 to C14 power cordCAB-C13-C14-JMPR
CEI 23-16 to IEC-C15 8ft ItalyCAB-C2316-C15-IT
CEE 7/7 to IEC-C15 8ft EuropeCAB-CEE77-C15-EU
IRSM 2073 to IEC-C15 8ft ArgenCAB-IR2073-C15-AR
NEMA 6-20 to IEC-C15 USCAB-N5K6A-NA
NEMA 5-15 to IEC-C15 8ft USCAB-US515-C15-US
Software
Cisco Cat4900 IOS Enterprise Services W/O CryptoS49ES-12246SG
Cisco Cat4900 IOS Enterprise Services SSHS49ESK9-12246SG
Cisco Cat4900 IOS IP Base W/O CryptoS49IPB-12246SG
Cisco Cat4900 IOS IP Base SSHS49ipbK9-12246SG
Data Sheet
Warranty
The Cisco Catalyst 4928 has a one-year limited hardware warranty. It includes hardware replacement with a 10-day
turnaround from receipt of a return materials authorization (RMA).
Cisco Technical Support Services
Cisco Technical Support Services helps ensure that your Cisco products operate efficiently, remain highly available,
and benefit from current system software to help you effectively manage your network service while controlling
operating costs.
Cisco Technical Support Services (Tables 8 and 9) provides significant benefits that go beyond what is offered under
the Cisco warranty policy. Services available under a Cisco SMARTnet® service contract that are not covered under
a warranty include the following:
●
Latest software updates
●
Rapid replacement of hardware with next-day, four-hour, or two-hour dispatch options
●
Ongoing technical support through Cisco Technical Assistance Center (TAC)
●
Registered access to
Table 9. Technical Support Services: Components
Feature Benefits
Software Support Software support offers maintenance and minor and major updates for licensed feature sets. Downloading new
Cisco TAC Support With more than 1000 highly trained customer support engineers, 390 CCIE® experts, and access to 13,000 research and
Cisco.com This award-winning website provides 24-hour access to an extensive collection of online product and technology
Advance Hardware
Replacement
Smart Call Home Cisco Smart Call Home is a proactive, connected service capability of Cisco SMARTnet Service that is available at no
http://www.cisco.com
maintenance releases, patches, or updates of Cisco IOS Software helps enhance and extend the useful life of Cisco
devices. Through major software updates, organizations can extend the life of equipment and maximize application
technology investments by:
●
Adding new functions that, in many cases, require no additional hardware investment
●
Increasing the performance of current functions
●
Enhancing network or application availability, reliability, and stability
development engineers, Cisco TAC complements your in-house staff with a high level of knowledge in data, voice, and
video communications networking technology. Its sophisticated call-routing system quickly routes calls to the correct
technology personnel. The Cisco TAC is available 24 hours a day, 365 days a year.
information, interactive network management and troubleshooting tools, and knowledge-transfer resources that can help
customers reduce costs by increasing staff self-sufficiency and productivity.
Advance replacement and onsite field engineer options supply fast access to replacement hardware and field resources
for installing hardware, minimizing the risk of potential network downtime.
additional cost on Cisco Catalyst 4500 Series Switches. Smart Call Home devices can continuously monitor their own
health using GOLD diagnostics technology and automatically notify you of potential issues using secure transmissions. If
a serious problem arises, Smart Call Home automatically detects it and generates a Cisco Technical Assistance Center
(TAC) service request that is routed to the right team for a particular problem.
Table 10. Technical Support Services: Competitive Differentiators
Feature Benefits
Worldwide Virtual Lab This extensive lab of Cisco equipment and Cisco IOS Software releases provides an invaluable engineering resource and
Cisco TAC Training
●
Boot camps
●
Tech calls
●
Tech forums
Cisco Live A powerful suite of Internet-enabled tools with firewall-friendly features, these secure, encrypted Java applets can turn a
Global Logistics With 10,000 onsite field engineers and a US$2.3 billion investment in inventory, Cisco delivers award-winning, worldwide
Cisco IOS Software Cisco IOS Software employs 100 discrete technologies with more than 2000 features. Each year, 400 new features are
knowledge base for training, product information, and recreation and testing of selected network problems to help
decrease time to resolution.
Cisco is committed to providing customers the latest in technology support. Cisco TAC training programs help customers
avoid opening cases. These programs also provide knowledge transfer of Cisco networking expertise.
simple phone call into an interactive collaboration session, allowing customers and Cisco TAC support engineers to work
together more effectively.
hardware replacement support from 650 depots, covering 120 countries.
added. Cisco IOS Software is installed in more than 10 million devices and is running on more than 10,000 networks
worldwide. It operates on the world’s largest IPv6 and voice-over-IP (VoIP) networks and in all major service provider
networks worldwide.
For More Information
To learn more about how you can take advantage of Cisco Technical Support Services, talk to your local Cisco
representative or visit
For additional information about the Cisco Catalyst 4900 Series, visit http://www.cisco.com/go/catalyst4500.